Strawberry quartz tumbled stones in nice size in good colour.

Quartz comes from the German quartz and 'strawberries' refers to the pink color with dark pink dots of the stone. Good for the heart chakra. Strawberry quartz is a pink speckled, slightly translucent stone belonging to the macrocrystalline quartz family. How the gemstones work Strawberry quartz: Strawberry quartz promotes love, enjoyment of small things, humor and joy and is therefore good for inner unrest and tension. The stone helps reinforce positive affirmations and has a positive effect on the heart. Quartz is a form of silicon dioxide, SiO2, and is one of the most abundant minerals on the Earth's crust. It represents more than 12% of the volume of the Earth's crust (including granite, sand). Quartz has two modifications: α quartz is trigonal, β quartz (a higher-temperature form) is hexagonal. In addition, silicon dioxide occurs in many other structures such as α- and -cristobalite, keatite, tridymite, coesite, stishovite, melangophlogite and lechatelierite. Although quartz consists of silicon dioxide, it is often counted among the tectosilicates. The reason for this is that quartz forms a network of SiO4 tetrahedra. Each oxygen atom is shared by two silicon atoms. Individual SiO2 molecules only occur with gaseous silicon dioxide. Quartz can be very pure, like rock crystal, but often contains impurities. These impurities may consist of ions that are incorporated into the crystal lattice during the growth of the crystal. Quartz crystals can contain between 13 and 15,000 ppm Al3+, between 9 and 1400 ppm Na+, between 3 and 300 ppm K+ and traces of Fe3+, Ti4+, P5+, H+ and Li+. The aluminum and iron, in combination with ionizing radiation, are responsible for the color of a number of quartz varieties. Furthermore, quartz crystals can grow over other minerals as is the case with rutile quartz. Quartz can form large crystals as well as microscopic aggregates. The largest quartz crystals are found at Farm Verloren in Namibia. Quartz crystals up to 20 meters, and possibly 50 meters, and dolomite crystals up to 2 meters occur here. When quartz is melted, it often forms a glass when cooled quickly, because the crystallization process takes quite a lot of time. Quartz is a piezoelectric material and the vibrations that can be generated in the lattice of the crystal are used in electronic equipment such as quartz clocks and radios.